[LeetCode][JavaScript]Valid Number
2015-05-16 16:18
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Valid Number
Validate if a given string is numeric.
Some examples:
Note: It is intended for the problem statement to be ambiguous. You should gather all requirements up front before implementing one.
https://leetcode.com/problems/valid-number/
正则技术哪家强
Validate if a given string is numeric.
Some examples:
"0"=>
true
" 0.1 "=>
true
"abc"=>
false
"1 a"=>
false
"2e10"=>
true
Note: It is intended for the problem statement to be ambiguous. You should gather all requirements up front before implementing one.
https://leetcode.com/problems/valid-number/
正则技术哪家强
/**
* @param {string} s
* @return {boolean}
*/
var isNumber = function(s) {
s = s.trim();
if(s !== "" && /^[-+]?(\d+\.?|\.\d+)\d*([e|E][-+]?\d+)?$/.test(s)){
return true;
}
return false;
};
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